John wesley bain



J. W. BAIN.

(No Model.)

GATE.

No. 420,489. Patented Feb. 4, 1890.

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. Unrrnn STATES PATENT @rrrcn.

. 1 JOHN WESLEY BAIN,' OF GONZALES, CALIFORNIA.

GATE.

SPECIFICATION forming part of Letters Patent No. 420,489, dated February4, 1890.

Application filed May 23, 1889. Serial No. 311,865. (No model.)

' fully describe and claim.

. and connected mechanism.

Figure I ,is a perspective view of my gate Fig. 2 shows one end of thetilting beam.

- 1 A is a fra e--work of suitable height to allow teams to pass beneaththe upper bar, and B is a lever the central portion of which issuspended by a link 0 or other suitable device from the upper bar of thegate-frame A. This link or support 0 serves as a fulcrum, about whichthe lever B may be tilted, so that either one end or the other will bedepressed alternately In the present case I have shown the wedgeD, andit will be manifest that a screw or other similar arrangement may beusedfor raising or lowering the fulcrum-link O, and thus keeping the gate ata proper height from the ground, so that its operations will not beinterfered with by striking against the ground by reason of itssettling.

The gate E has two uprights F F, the first of which is the longer of thetwo, so that when the gate is suspended from the bar B by means of therollers G, which are journaled in the upper part of the uprights F F,

the gate will stand horizontally, as shown in the drawings, while thebar B stands at an incline.

It will be manifest that when the bar B stands at the incline shown inthe drawings the gate will travel down this incline, if open, until itcloses against the side of the surrounding frame A,'and when the bar istilted in the opposite direction the gate will in the same manner traveldown the incline until it strikes the other end of the surroundingframe, and will thus leave an open space to drive through.

At each end of the frame A is a swinging latch H, having a notch made init, as shown shown.

at I, and when the lever B has been tilted so thatone of the ends isdepressed the pin J at that end will engage with the notch I of thelatch, and this will hold the bar B in that position until the gate hascompleted its travel. When the gate reaches this lower end, it strikesagainst the latch II and pushes it back, so as to release the pin J fromthe notch I, and the bar will then be in readiness to be again tilted inthe opposite direction; but it will not tilt of its own accord, becausethe weight of the gate upon that side keeps it in its depressedposition.

In order to move the bar B, I have shown one end of it passing through aslot K, which is made in one of the end posts of the frame A, and thisend of the bar engages or is connected with a vertical slide L, whichtravels in guides M upon the outer side of the post A. The lower end ofthis slide is connected by a rod or pitman N with a crank O, as Thiscrank is formed upona shaft which is journaled horizontally just outsideof the roadway and post A, and the shaft has also the cranks P and Pformed in it outside the crank 0. These cranks are connected by means ofrods or links Q with other cranks R, which are formed in shaftsjournaled at some distance each side of thegate, and these shafts havecranks or bails formed in them, over which the wheel of the vehicle maypass, so as to depress the bails and turn the cranks B. This movement istransmitted through the rod Q, cranks P and O, and connectingrod M tothe slide L, and thus the bar B istilted.

The operation will then be as follows; The gate being closed, as shownin the drawings, when the wheels of the vehicle pass over one of thecranks or bails S the lever B will be tilted, so that its opposite endwill be depressed, and the pin J at that end will engage the notch I ofthe latch H, which will hold the lever in this position aft-er the wheelhas released the bail S. The gate will then travel slowly down theinclined bar B until it reaches the outer end, when it strikes againstthe latch II, and thus releases the pin J, so that the bar B is incondition to be again tilted back to its former angle. This is done bythe passage of the wheel over the bail T, which is made on the inner endof the cen- IOO tral shaft which carries the cranks O and P. After thevehicle has passed through the gate and the lever is again tilted to itsfirst position the gate, being raised with its outer end, will againtravel down the incline until it closes. The act of closing will releasethe catch I at the inner end of the frame, as before described, so as toleave the bar in readiness to be again tilted; but the weight of thegate upon the inclined bar will also retain it in its position until theincline is changed by force. The outer bail S must not be touched by thewheels in leaving the gate. The ends of the tilting bar are inclinedupward, as shown at ct, the inclination assisting to start the gate fromone end and checking it quietly at the other end. A catch Z) preventsthe rebound after the gate strikes the post.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. The extension-frame, the tilting bar suspended on it from a centralfulcrum, the gate traveling on said bar, and a slide moving verticallyin guides upon one side of the frame and connected with the end of thetilting lever, in combination with the horizontallyjournaled shafthaving the crank portion 0, connected with said slide, and having alsothe cranks P and P, which are connected with the Wheel-irons,substantially as described.

2. The tilting bar suspended from the main frame, the cranks, andconnecting mechanisms operated by the wheel-irons, whereby said bar istilted about its fulcrum and the gate suspended from said bar and havingrollers upon which it may travel from end to end of the same, incombination with the pending device between the main frame and thetilting bar, and an inclined plane engaging the suspending device,whereby the fulcrum of the bar may be raised or depressed, substantiallyas described.

In witness whereof I have hereunto set my hand.

JOHN WVESLEY BAIN.

Witnesses:

THOS. RENISON, H. II. MILLER.

